Multimodal Treatment of Sarcomas Linked to BCOR-CCNB3 Fusion in Pediatrics: A 3-Patient Case Series

In 2012, a new neoplasm was classified according to fusion of the B-cell lymphoma (BCL-6) corepressor (BCOR) gene and the testis-specific cyclin B3 (CCNB3) gene on the X-chromosome, known as a BCOR-CCNB3 fusion positive sarcoma. Traditionally, BCOR sarcomas have been classified as 'Ewing-like&#...

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Main Authors: Salma Omar, Karen Albritton, Kenneth Heym, Jason Wang, Anish Ray
Format: Article
Language:English
Published: The Korean Society of Pediatric Hematology-Oncology 2022-10-01
Series:Clinical Pediatric Hematology-Oncology
Subjects:
Online Access:https://doi.org/10.15264/cpho.2022.29.2.60
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author Salma Omar
Karen Albritton
Kenneth Heym
Jason Wang
Anish Ray
author_facet Salma Omar
Karen Albritton
Kenneth Heym
Jason Wang
Anish Ray
author_sort Salma Omar
collection DOAJ
description In 2012, a new neoplasm was classified according to fusion of the B-cell lymphoma (BCL-6) corepressor (BCOR) gene and the testis-specific cyclin B3 (CCNB3) gene on the X-chromosome, known as a BCOR-CCNB3 fusion positive sarcoma. Traditionally, BCOR sarcomas have been classified as 'Ewing-like' due to similarities in morphology. However, BCOR-CCNB3 fusion positive sarcomas are molecularly and genetically distinct. Previous studies have focused on clinical and pathologic characterization of this specific malignancy, but standard treatment modalities are not well documented. We present three pediatric patients diagnosed with BCOR-CCNB3 sarcomas. A two-year-old girl and a 16-year-old boy were treated using a five-drug therapy consisting of vincristine, doxorubicin, etoposide, ifosfamide, and cyclophosphamide. A 12-yearold girl received a two-drug therapy using a combination of ifosfamide and doxorubicin. All three patients are in remission following chemotherapy and surgery, confirming the effectiveness and safety of the outlined regimens. There is a lack of consensus regarding an appropriate therapy algorithm for Ewing sarcoma patients with BCOR. The present study adds to the extant literature by detailing effective, yet varying treatment modalities.
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spelling doaj.art-9c5cbeeb672d4376a492a6009240cc272022-12-22T03:53:17ZengThe Korean Society of Pediatric Hematology-OncologyClinical Pediatric Hematology-Oncology2233-52502022-10-01292606410.15264/cpho.2022.29.2.60cpho.2022.29.2.60Multimodal Treatment of Sarcomas Linked to BCOR-CCNB3 Fusion in Pediatrics: A 3-Patient Case SeriesSalma Omar0Karen Albritton1Kenneth Heym2Jason Wang3Anish Ray4Texas College of Osteopathic Medicine, University of North Texas Health Science Center, TX, USADepartment of Pediatric Hematology/Oncology, Cook Children’s Health Care System, Fort Worth, TX, USADepartment of Pediatric Hematology/Oncology, Cook Children’s Health Care System, Fort Worth, TX, USADepartment of Pediatric Hematology/Oncology, Cook Children’s Health Care System, Fort Worth, TX, USADepartment of Pediatric Hematology/Oncology, Cook Children’s Health Care System, Fort Worth, TX, USAIn 2012, a new neoplasm was classified according to fusion of the B-cell lymphoma (BCL-6) corepressor (BCOR) gene and the testis-specific cyclin B3 (CCNB3) gene on the X-chromosome, known as a BCOR-CCNB3 fusion positive sarcoma. Traditionally, BCOR sarcomas have been classified as 'Ewing-like' due to similarities in morphology. However, BCOR-CCNB3 fusion positive sarcomas are molecularly and genetically distinct. Previous studies have focused on clinical and pathologic characterization of this specific malignancy, but standard treatment modalities are not well documented. We present three pediatric patients diagnosed with BCOR-CCNB3 sarcomas. A two-year-old girl and a 16-year-old boy were treated using a five-drug therapy consisting of vincristine, doxorubicin, etoposide, ifosfamide, and cyclophosphamide. A 12-yearold girl received a two-drug therapy using a combination of ifosfamide and doxorubicin. All three patients are in remission following chemotherapy and surgery, confirming the effectiveness and safety of the outlined regimens. There is a lack of consensus regarding an appropriate therapy algorithm for Ewing sarcoma patients with BCOR. The present study adds to the extant literature by detailing effective, yet varying treatment modalities.https://doi.org/10.15264/cpho.2022.29.2.60bcor sarcomabcor-ccnb3 fusionchemotherapypediatric oncology
spellingShingle Salma Omar
Karen Albritton
Kenneth Heym
Jason Wang
Anish Ray
Multimodal Treatment of Sarcomas Linked to BCOR-CCNB3 Fusion in Pediatrics: A 3-Patient Case Series
Clinical Pediatric Hematology-Oncology
bcor sarcoma
bcor-ccnb3 fusion
chemotherapy
pediatric oncology
title Multimodal Treatment of Sarcomas Linked to BCOR-CCNB3 Fusion in Pediatrics: A 3-Patient Case Series
title_full Multimodal Treatment of Sarcomas Linked to BCOR-CCNB3 Fusion in Pediatrics: A 3-Patient Case Series
title_fullStr Multimodal Treatment of Sarcomas Linked to BCOR-CCNB3 Fusion in Pediatrics: A 3-Patient Case Series
title_full_unstemmed Multimodal Treatment of Sarcomas Linked to BCOR-CCNB3 Fusion in Pediatrics: A 3-Patient Case Series
title_short Multimodal Treatment of Sarcomas Linked to BCOR-CCNB3 Fusion in Pediatrics: A 3-Patient Case Series
title_sort multimodal treatment of sarcomas linked to bcor ccnb3 fusion in pediatrics a 3 patient case series
topic bcor sarcoma
bcor-ccnb3 fusion
chemotherapy
pediatric oncology
url https://doi.org/10.15264/cpho.2022.29.2.60
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AT kennethheym multimodaltreatmentofsarcomaslinkedtobcorccnb3fusioninpediatricsa3patientcaseseries
AT jasonwang multimodaltreatmentofsarcomaslinkedtobcorccnb3fusioninpediatricsa3patientcaseseries
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